VITAL VASCULAR CAVITY EXPANDER

摘要

PURPOSE:To surely prevent the expander body indwelled in the stenosal part of the vital vascular cavity from being inserted deeper than the stenosal part and to facilitate the operation to remove the expander body from the stenosal part. CONSTITUTION:A stopper 9 which is connected to the expander body 4 and prevents the expander body 4 from being inserted deeper than the stenosal part 3 is disposed on the outer side of the bile duct 2 where the expander body 4 is indwelled.